Source: https://tendernation.io/opportunities/01a13d1e-b5f8-72cb-871b-209f33f9cf54/national-trust-clumber-park-diamond-backed-spider-recovery-project-consultan closed GB open procedure Suitable for SMEs # National Trust - Clumber Park - Diamond-backed Spider Recovery Project Consultancy Services (A) [The National Trust for Places of Historic Interest Or Natural Beauty](https://tendernation.io/buyers/the-national-trust-for-places-of-historic-interest-or-natural-beauty) Estimated value £35,922 Published 7 Jul 2026 Deadline Closed 31 Jul 2026 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The National Trust is seeking suitably qualified ecological consultants to support the recovery of the Critically Endangered Diamond-backed Spider (Thanatus formicinus). The commission is divided into three work packages. This opportunity relates to Package A: spider ecology, monitoring and research across Clumber Park and the Sherwood Forest landscape. The project will improve understanding of the species' ecology, breeding phenology and dispersal, provide habitat management guidance, assess habitat connectivity, and develop a translocation methodology and implementation plan by 2029. Work will be undertaken in collaboration with the National Trust, British Arachnological Society, University of Nottingham and other stakeholders. The project runs from 2026-2029. This opportunity is being conducted on the Proactis Plaza portal. [supplierlive.proactisp2p.com](https://supplierlive.proactisp2p.com/) If you would like to be involved, please ensure you have access to your Proactis account and let us know your supplier number so that we can make sure you have access to the tender pack. If you do not have a Proactis account please create one and let us know your supplier number. There is no cost to have a Proactis account. ## CPV classification Environmental engineering consultancy services Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/91e972bd-ec6d-47f9-b71c-dd57b928b020) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile The National Trust for Places of Historic Interest Or Natural Beauty: past awards and live tenders](https://tendernation.io/buyers/the-national-trust-for-places-of-historic-interest-or-natural-beauty) [Sector More Architecture, engineering & surveying tenders](https://tendernation.io/sectors/architecture-engineering-surveying) ## More tenders like this [Architectural, design and building consultancy services - Dalby Visitor Centre · Forestry Commission · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15552-1b8a-7041-80fb-e4943876fc38/architectural-design-and-building-consultancy-services-dalby-visitor-centre) [Asbestos Management Framework · Home Group · 25 days left · 13 Nov 2026](https://tendernation.io/opportunities/01a15476-5fff-736e-ae2e-0c8a400c7297/asbestos-management-framework) [Infrastructure works consultancy services – Contrôle extérieur des chaussées · Collectivité européenne d Alsace · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-1730-733b-8247-a32bbbe2211c/france-infrastructure-works-consultancy-services-controle-exterieur-des-chau) [Architectural, construction, engineering and inspection services – Būvprojekta izstrāde un autoruzraudzība fasādes siltināšanai kārtās Dzirciema ielā 16, Rīgā – 1.kārta, C korpuss · Rīgas Stradiņa universitāte · 28 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a15183-3915-73d1-83e6-c378f9f7a926/latvia-architectural-construction-engineering-and-inspection-services-buvp) [Technical assistance services – Suivi et gestion de chantiers de réhabilitation de sites pollués · SPAQuE · 15 days left · 3 Nov 2026](https://tendernation.io/opportunities/01a15183-155e-73c2-a593-9e17375422ac/belgium-technical-assistance-services-suivi-et-gestion-de-chantiers-de-rehab) [Architectural, construction, engineering and inspection services – Single Party Framework Agreement for Architect Led Integrated Design Team Services for Fire Safety Remediation Works for Dublin City Council · Dublin City Council · 5 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-0a15-7156-849b-5a223dd6d615/ireland-architectural-construction-engineering-and-inspection-services-sin)